EP0870484A1 - Pressure assisted ultrasonic balloon catheter and method of using same - Google Patents
Pressure assisted ultrasonic balloon catheter and method of using same Download PDFInfo
- Publication number
- EP0870484A1 EP0870484A1 EP98200102A EP98200102A EP0870484A1 EP 0870484 A1 EP0870484 A1 EP 0870484A1 EP 98200102 A EP98200102 A EP 98200102A EP 98200102 A EP98200102 A EP 98200102A EP 0870484 A1 EP0870484 A1 EP 0870484A1
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- EP
- European Patent Office
- Prior art keywords
- stent
- balloon
- catheter
- ultrasonic
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/104—Balloon catheters used for angioplasty
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/958—Inflatable balloons for placing stents or stent-grafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
- A61B2017/22014—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
Definitions
- This invention relates to dilatation catheters and more particularly to dilatation catheters adapted for low pressure stent dilatation and angioplasty.
- Balloon catheters are used in percutaneous transluminal coronary angioplasty, stent dilatation, and in other medical procedures to repair arteries and maintain blood flow through the body lumens.
- high pressure balloon angioplasty using a high pressure noncompliant balloon at typically 20 atm of pressure inside a deployed stent may cause good stent and arterial wall apposition and may reduce or eliminate patient anticoagulation regimens following stent implantation.
- high pressure may have certain disadvantages. For example, if the balloon ruptures, medical complications may result. Also, if a balloon is not accurately placed and extends from the stent, relatively healthy artery may be damaged by the relatively higher pressure inflation.
- Ultrasonic assisted balloon angioplasty may include using a relatively lower inflation pressure to dilate an ultrasonically relaxed body vessel.
- One embodiment of the invention is a balloon catheter including an ultrasound energy delivery probe or wire situated between the balloon and a stent in a body lumen.
- the balloon may be inflated to a bias pressure near, but below, that pressure needed to cause stent expansion. Thereafter, the ultrasound may be turned on to cause the stent to expand.
- the bias pressure is typically about 2 atm.
- the invention may also be used with a Wallstent® Endoprosthesis Device such as U.S. Patent Nos. 4,655,771.
- the balloon bias pressure creates a bias stress in the stent.
- the ultrasound causes the stent to vibrate, and periodically causes a strain in the hoop direction.
- the ultrasound also may cause the arterial walls to relax. See Derek R. Boughner and Margot R. Roach, Effect of Low Frequency Vibration on the Arterial Wall , CIRCULATION RESEARCH, Aug. 1971, at 136.
- the ultrasound causes the stent to vibrate, and periodically causes a strain in the hoop direction.
- the ultrasonically induced strain causes the metal of the stent to pass its yield point, and deformation occurs in the hoop direction, in the circumferential direction, causing the stent to radially expand.
- the deformation cycle may be repeated with continued delivery of ultrasonic cycles and balloon bias pressure to the stent for further radial expansion.
- the bias balloon pressure may be increased as the stent becomes work-hardened.
- the balloon pressure and acoustical energy may be applied simultaneously or prior to the other to the stent.
- Transducers known in the art may be optimized to produce linear probe displacement in coronary arteries for thrombolysis.
- Devices known in the art include U.S. Patent Nos. 5,163,421; 5,269,291; 5,269,297; 5,380,373; 5,427,118; 5,447,509; 5,451,220; 5,474,530; 5,524,620; and 5,611,807.
- Other ultrasound delivery probes are also known in the art.
- the transducer in the present invention may be a separate component or integrally designed into the catheter.
- the device may include an acoustic horn integrally designed into the catheter.
- the horn may be approximately 3 feet long, welded to three fine titanium wires or other materials known in the art to form a stem.
- the wires or delivery probes may be disposed at or near the balloon for stimulation of the stent.
- the cardiologist may advantageously use a system including a comparatively short balloon and a footswitch or button activated ultrasound energy generator system and selectively expand portions of the stent to desired arterial dimensions in an efficient and reliable way as compared to high pressure balloon dilatation.
- ultrasonic energy vibrations during stent dilatation or angioplasty is that arterial relaxation may occur during or following ultrasonic energy delivery to the coronary artery. This relaxation may reduce the pressure required to expand the stent by reducing the pressure required to dilate the arterial wall. Additionally, the high frequency oscillating energy may facilitate stent expansion by allowing the stent to move through the plaque.
- Electromagnetic systems may easily deliver the required energy for a standing wave.
- ultrasound stimulation may efficiently create an acoustical standing wave and may provide the greatest amount of stent expansion.
- a preferred balloon inflation pressure ranges from about 4 atm to about 6 atm and acoustical energy delivery at a range from about 20 kHz to about 40 kHz at the stent.
- the invention relates to an ultrasonic balloon catheter and stent assembly including a balloon catheter.
- the balloon catheter has a shaft with proximal and distal portions and one or more lumens.
- the balloon is connected to the distal portion of the shaft and is in communication with an inflation lumen.
- the balloon has an uninflated and an inflated state.
- An acoustical energy generator is associated with the catheter and is adapted to provide oscillating energy at or near the balloon.
- a stent for placement in a body lumen is included and sized and configured to allow the balloon to be inserted in the stent in the uninflated state wherein transmission of the oscillating energy to the stent in combination or alternating with balloon pressure to a predetermined pressure causes deformation of the stent.
- the acoustical energy generator may be an ultrasound transducer or horn and adapted to communicate energy through at least one wire to at or near the stent.
- the acoustical energy generator may be a mechanical mechanism and adapted to communicate energy to at or near the stent.
- the acoustical energy generator may be an ultrasound transducer disposed on or about the catheter or balloon and adapted to communicate ultrasonic energy to at or near the stent.
- the acoustical energy generator may be controlled from outside the body.
- the acoustical energy generator may be operated by a power source selected from the group consisting of battery, magnet, and electricity.
- the required inflation pressure of the balloon to expand a stent may be less than about 12 atm.
- the acoustical energy generator may be adapted to increase the stress and strain on a stent.
- the acoustical energy and balloon pressure in combination or alternatingly may be adapted to at least partially expand at least one of a body vessel or stent.
- One of the acoustical energy or balloon pressure may be applied to the stent before the other and may be adapted to at least partially strain at least one of a body vessel or stent.
- the balloon may be adapted to at least partially expand at least one of a body vessel or stent at a pressure range of about 2 atm to about 7 atm while simultaneously applying the acoustical energy at or near the balloon at a range of about 20 kHz to about 40 kHz.
- the invention also relates to an ultrasonic balloon catheter and stent assembly including a balloon catheter having a shaft with proximal and distal portions and one or more lumens.
- a balloon is connected to the distal portion of the shaft and is in communication with an inflation lumen.
- the balloon has an uninflated and an inflated state.
- An acoustical energy generator is adapted to provide acoustical energy at or near the balloon.
- a stent for placement in a body lumen is included and sized and configured to allow the balloon to be inserted in the stent in the uninflated state wherein transmission of the oscillating energy to the stent at a range of about 10 kHz to about 50 kHz in combination with balloon pressure at a pressure range of about 2 atm to about 6 atm causes deformation of the stent.
- the balloon may be adapted to at least partially expand at least one of a body vessel or stent at a pressure range of about 2 atm to about 6 atm while simultaneously applying the acoustical energy at or near the balloon at a range of about 20 kHz to about 40 kHz.
- the balloon may be adapted to at least partially expand at least one of a body vessel or stent at a pressure range of about 4 atm to about 6 atm while simultaneously applying the acoustical energy at or near the balloon at a range of about 25 kHz to about 35 kHz.
- the invention also relates to a method of expanding a stent including the steps of inserting the stent in a body vessel, disposing, a catheter at or near a stent, the catheter having a balloon associated with a acoustical or ultrasonic energy generator, and transmitting acoustical or ultrasonic energy generated from the acoustical energy generator to the stent and simultaneously applying a predetermined pressure to the balloon to thereby expand the stent.
- the predetermined pressure may range from about 2 atm to about 6 atm and the energy may be in the range from about 10 kHz to 50 kHz.
- the predetermined balloon pressure may be increased upon work-hardening of the stent.
- the energy generated from the acoustical energy generator may be intermittently transmitted to a location at or near the stent
- the invention also relates to a method of expanding a stent including delivering a stent to a treatment site, the stent having an interior surface, delivering a balloon catheter to the treatment site, the balloon catheter having a tubular shaft defining a lumen, the catheter having a proximal portion and a distal portion, a balloon mounted on the catheter distal portion and in communication with the lumen, and an acoustical energy generator adapted for transmitting acoustical energy to at or near the balloon and to strain the stent in its hoop direction causing expansion of the stent, disposing the balloon within the stent and transmitting acoustical energy to at or near the stent at a predetermined location and inflating the balloon to a predetermined pressure thereby applying force and energy to the stent interior surface or stent hoop direction.
- the balloon pressure force and ultrasonic energy may be simultaneously transmitted to the stent.
- the balloon pressure and ultrasonic energy may be alternatingly transmitted to the stent.
- the acoustical energy may be intermittently transmitted at a predetermined location of the stent.
- FIGS. 1 and 2 illustrate a catheter 10 having ultrasonic wires 13 disposed between the exterior of the balloon 15 and a stent 18 .
- the catheter 10 comprises a tubular shaft 14 having proximal and distal portions 3 and 4 respectively and a balloon 15 .
- the dilatation balloon 15 is mounted on the distal portion 4 of shaft 14 , e.g., for expanding an expandable stent 18 .
- An inflation lumen 7 extends throughout the shaft 14 and is fed by a pressure source 19 for inflating the balloon 15 .
- the pressure source 19 is connected to the inflation lumen 7 and communicates with the balloon 15 .
- the transducer 11 is connected to a power source 22 and a horn 12 .
- the horn 12 may be an integral part of the catheter 10 or be located proximal of the catheter 10 .
- the horn 12 is connected to ultrasonic wires 13 extruded in the wall of the shaft 14 , or the wires 13 may run in a channel or loosely in a lumen in the shaft 14 of the catheter 10 .
- the wires 13 may form a stem and exit through the walls of the shaft 14 proximal of the balloon 15 and be equidistantly disposed on the balloon 15 .
- An alternative embodiment may have the wires 13 disposed inside the balloon 15 .
- Three ultrasonic wires 13 are illustrated in FIGS. 1-2, however, one or more ultrasonic wires 13 may be incorporated.
- the ultrasonic wires 13 are preferably spaced equidistantly apart and disposed adjacent to the balloon 15 and under the stent 18 . Additional embodiments of the invention are included below.
- a third device includes a miniature ultrasonic transducer 25 (not illustrated), optimized to expand a stent 18 , disposed on the distal portion 4 of a catheter 10 at or near the balloon 15 for stimulation of the stent 18 .
- U.S. Patent No. 5,269,291 describes a miniature ultrasonic transducer.
- FIG. 3 illustrates stress versus strain on a stent 18 using the present invention.
- the ultrasound from the transducer 11 and horn 12 may be turned on to cause the stent 18 to expand.
- the balloon 15 pressure from the pressure source 19 creates a bias stress in the stent 18 which is illustrated by dotted line A or A2 in FIG. 3.
- the ultrasound causes the stent 18 to vibrate, and periodically causes a strain in the hoop direction.
- the ultrasonically induced strain and oscillating energy in combination with balloon bias pressure causes the metal of the stent 18 to pass its yield point at point C , and deformation of the stent 18 occurs causing the stent 18 to become larger.
- the deformation cycle of the stent 18 may be repeated with continued delivery of ultrasonic cycles to the stent 18 .
- the ultrasound may be turned on prior to inflation of the balloon 15 .
- the balloon pressure may be elevated as the stent 18 becomes work-hardened from the ultrasound or acoustical energy. This increase in balloon bias pressure is illustrated as dotted line A2 .
- Other variations of balloon bias pressure A , A2 in combination with the ultrasonic energy from the transducer 11 and horn 12 are also possible.
- FIG. 4 illustrates pressure versus time on a stent 18 using the present invention.
- the amplitude and frequency of the pressure and ultrasonic energy may vary depending on the pressure source 19 and design of the stent 18 .
- Bias is created by the balloon pressure and is illustrated by the line B . Variations of balloon bias pressure and frequency of the ultrasonic energy are also possible.
- a fourth device includes a series of bent wires, or a ball on a wire which may be rotated to produce the desired result.
- FIG. 5 illustrates a mechanical device 30 such as a ball or wire adapted to rotate or slide in a balloon 15 to create an oscillating energy source at the stent 18 .
- the proximal end of the ball or wire 30 is connected to a mechanism 32 such as a motor and a power source 22 .
- Axial displacement of the wire 30 may advantageously deliver pressure surges and energy to the adjacent stent 18 for relatively low pressure inflation of the stent 18 .
- a pressure source 19 is connected to the inflation lumen 7 in the shaft 14 and communicates with the balloon 15 .
- the balloon inflation pressure and acoustical energy necessary to expand a stent 18 will be influenced by the design and type of stent 18 used.
Abstract
Description
Claims (14)
- An ultrasonic balloon catheter and stent assembly comprising:a balloon catheter having a shaft (14) with proximal and distal portions (3,4) and one or more lumens, a balloon (15) connected to the distal portion (4) of the shaft (14) and in communication with an inflation lumen (7), the balloon (15) having an uninflated and an inflated state;an acoustical energy generator associated with the catheter (10) and adapted to provide oscillating energy at or near the balloon (15); anda stent (18) for placement in a body lumen and sized and configured to allow the balloon (15) to be inserted in the stent (18) in the uninflated state wherein transmission of the oscillating energy to the stent (18) in combination or alternating with balloon pressure to a predetermined pressure causes deformation of the stent (18).
- The ultrasonic balloon catheter and stent assembly of claim 1 wherein the acoustical energy generator is an ultrasound transducer (25) and adapted to communicate energy through at least one wire (13) to at or near the stent (18).
- The ultrasonic balloon catheter and stent assembly of claim 1 wherein the acoustical energy generator is a mechanical mechanism and adapted to communicate energy to at or near the stent (18).
- The ultrasonic balloon catheter and stent assembly of claim 1 wherein the acoustical energy generator is an ultrasound transducer (25) disposed on or about the catheter (10) or balloon (15) and adapted to communicate ultrasonic energy to at or near the stent (18).
- The ultrasonic balloon catheter and stent assembly of claim 1 wherein the required inflation pressure of the balloon (15) to expand a stent (18) is less than about 12 atm.
- The ultrasonic balloon catheter and stent assembly of claim 1 wherein the acoustical energy generator is adapted to increase the stress and strain on a stent (18).
- The ultrasonic balloon catheter and stent assembly of claim 1 wherein the acoustical energy and balloon pressure in combination or alternatingly are adapted to at least partially expand at least one of a body vessel or stent (18).
- The ultrasonic balloon catheter and stent assembly of claim 1 wherein one of the acoustical energy or balloon pressure is applied to the stent (18) before the other and is adapted to at least partially strain at least one of a body vessel or stent (18).
- The ultrasonic balloon catheter and stent assembly of claim 1 whereby the balloon (15) is adapted to at least partially expand at least one of a body vessel or stent (18) at a pressure range of about 2 atm to about 7 atm while simultaneously applying the acoustical energy at or near the balloon (15) at a range of about 20 kHz to about 40 kHz.
- An ultrasonic balloon catheter and stent assembly comprising:a balloon catheter having a shaft (14) with proximal and distal portions (3,4) and one or more lumens, a balloon (15) connected to the distal portion of the shaft (14) and in communication with an inflation lumen (7), the balloon (15) having an uninflated and an inflated state;an acoustical energy generator adapted to provide acoustical energy at or near the balloon (15);a stent (18) for placement in a body lumen and sized and configured to allow the balloon (15) to be inserted in the stent (18) in the uninflated state wherein transmission of the oscillating energy to the stent (18) at a range of about 10 kHz to about 50 kHz in combination with balloon pressure at a pressure range of about 2 atm to about 6 atm causes deformation of the stent (18).
- A method of expanding a stent comprising the steps of:inserting the stent (18) in a body vessel;disposing a catheter (10) at or near a stent (18), the catheter (10) having a balloon (15) associated with an acoustical or ultrasonic energy generator; and transmitting acoustical or ultrasonic energy generated from the acoustical energy generator to the stent (18) and simultaneously applying a predetermined pressure to the balloon (15) to thereby expand the stent (18).
- The method of expanding a stent of claim 11 wherein the predetermined balloon pressure increases upon work hardening of the stent (18).
- A method of expanding a stent comprisingdelivering a stent (18) to a treatment site, the stent (18) having an interior surface;delivering a balloon catheter to the treatment site, the balloon catheter having a tubular shaft (14) defining a lumen, the catheter having a proximal portion (3) and a distal portion (4), a balloon (15) mounted on the catheter distal portion (4) and in communication with the lumen, and an acoustical energy generator adapted for transmitting acoustical energy to at or near the balloon (15) and to strain the stent (18) in its hoop direction causing expansion of the stent (18);disposing the balloon within the stent (18); andtransmitting acoustical energy to at or near the stent (18) at a predetermined location and inflating the balloon (15) to a predetermined pressure thereby applying force and energy to the stent interior surface or stent hoop direction.
- The method of expanding a stent of claim 13 wherein acoustical energy is intermittently transmitted at a predetermined location of the stent (18).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US826889 | 1997-04-08 | ||
US08/826,889 US5722979A (en) | 1997-04-08 | 1997-04-08 | Pressure assisted ultrasonic balloon catheter and method of using same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0870484A1 true EP0870484A1 (en) | 1998-10-14 |
EP0870484B1 EP0870484B1 (en) | 2004-07-14 |
Family
ID=25247778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98200102A Expired - Lifetime EP0870484B1 (en) | 1997-04-08 | 1998-01-16 | Pressure assisted ultrasonic balloon catheter |
Country Status (5)
Country | Link |
---|---|
US (1) | US5722979A (en) |
EP (1) | EP0870484B1 (en) |
JP (1) | JPH10286311A (en) |
CA (1) | CA2227838C (en) |
DE (1) | DE69824988T2 (en) |
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Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK0744163T3 (en) | 1995-05-26 | 2000-04-10 | Schneider Europ Gmbh | Stent expansion system using a pulsating fluid |
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US6361554B1 (en) * | 1999-06-30 | 2002-03-26 | Pharmasonics, Inc. | Methods and apparatus for the subcutaneous delivery of acoustic vibrations |
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US6743251B1 (en) * | 2000-11-15 | 2004-06-01 | Scimed Life Systems, Inc. | Implantable devices with polymeric detachment junction |
US6623444B2 (en) | 2001-03-21 | 2003-09-23 | Advanced Medical Applications, Inc. | Ultrasonic catheter drug delivery method and device |
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JP4243499B2 (en) * | 2002-06-11 | 2009-03-25 | 富士通株式会社 | Bonded substrate manufacturing apparatus and bonded substrate manufacturing method |
US7487579B2 (en) * | 2003-03-12 | 2009-02-10 | Boston Scientific Scimed, Inc. | Methods of making medical devices |
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US7303572B2 (en) * | 2004-12-30 | 2007-12-04 | Cook Incorporated | Catheter assembly with plaque cutting balloon |
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US7708753B2 (en) | 2005-09-27 | 2010-05-04 | Cook Incorporated | Balloon catheter with extendable dilation wire |
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GB2549081A (en) | 2016-03-29 | 2017-10-11 | Imp Innovations Ltd | Angioplasty of calcified arteries |
US11179169B2 (en) * | 2016-11-04 | 2021-11-23 | Les Solutions Medicales Soundbite Inc. | Device for delivering mechanical waves through a balloon catheter |
US10531890B2 (en) * | 2016-12-30 | 2020-01-14 | C.R. Bard, Inc. | Scoring balloon with translating scoring wires |
US10898214B2 (en) | 2017-01-03 | 2021-01-26 | Cardiovascular Systems, Inc. | Systems, methods and devices for progressively softening multi-compositional intravascular tissue |
CN108371745A (en) * | 2018-03-16 | 2018-08-07 | 上海心至医疗科技有限公司 | A kind of medicine eluting balloon catheter system of band vibration |
CA3112279A1 (en) * | 2018-09-11 | 2020-03-19 | Nicolas Aeby | Ultrasonic device |
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4655771A (en) | 1982-04-30 | 1987-04-07 | Shepherd Patents S.A. | Prosthesis comprising an expansible or contractile tubular body |
US4733665A (en) | 1985-11-07 | 1988-03-29 | Expandable Grafts Partnership | Expandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft |
US4762129A (en) | 1984-11-23 | 1988-08-09 | Tassilo Bonzel | Dilatation catheter |
US5002531A (en) | 1986-06-26 | 1991-03-26 | Tassilo Bonzel | Dilation catheter with an inflatable balloon |
US5163421A (en) | 1988-01-22 | 1992-11-17 | Angiosonics, Inc. | In vivo ultrasonic system with angioplasty and ultrasonic contrast imaging |
US5232445A (en) | 1984-11-23 | 1993-08-03 | Tassilo Bonzel | Dilatation catheter |
EP0710490A2 (en) * | 1994-11-04 | 1996-05-08 | SciMed Life Systems, Inc. | Balloon catheter with improved pressure source |
US5524620A (en) * | 1991-11-12 | 1996-06-11 | November Technologies Ltd. | Ablation of blood thrombi by means of acoustic energy |
US5527336A (en) * | 1986-12-09 | 1996-06-18 | Boston Scientific Corporation | Flow obstruction treatment method |
EP0744163A1 (en) * | 1995-05-26 | 1996-11-27 | Schneider (Europe) Ag | Stent expansion system using a pulsated fluid medium |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH523074A (en) * | 1971-11-19 | 1972-05-31 | Bruno Dr Med Huerzeler | Catheterization device for tidal drainage of the urinary bladder |
US3994294A (en) * | 1975-02-28 | 1976-11-30 | Ivac Corporation | Syringe pump valving and motor direction control system |
US4493697A (en) * | 1979-05-10 | 1985-01-15 | Krause Horst E | Method and apparatus for pumping blood within a vessel |
DE3138620A1 (en) * | 1981-09-29 | 1983-04-14 | Adolf Dr.med. Ing.(grad.) 3000 Hannover Kuhl | DILATION DEVICE |
US4446867A (en) * | 1981-12-31 | 1984-05-08 | Leveen Robert F | Fluid-driven balloon catheter for intima fracture |
DE3538739A1 (en) * | 1985-10-31 | 1987-05-07 | Schubert Werner | Catheter with frontal balloon |
JPS63160635A (en) * | 1986-12-23 | 1988-07-04 | 三菱レイヨン株式会社 | Living body component measuring utensil |
US4872483A (en) * | 1987-12-31 | 1989-10-10 | International Medical Products, Inc. | Conveniently hand held self-contained electronic manometer and pressure modulating device |
JPH02297381A (en) * | 1988-10-05 | 1990-12-07 | Abiomed Lp | Cardiac function aid air-bladder and inserting method therefor |
US5152776A (en) * | 1990-04-03 | 1992-10-06 | Cordis Corporation | Balloon inflation device |
US5269291A (en) * | 1990-12-10 | 1993-12-14 | Coraje, Inc. | Miniature ultrasonic transducer for plaque ablation |
US5447509A (en) * | 1991-01-11 | 1995-09-05 | Baxter International Inc. | Ultrasound catheter system having modulated output with feedback control |
US5324255A (en) * | 1991-01-11 | 1994-06-28 | Baxter International Inc. | Angioplasty and ablative devices having onboard ultrasound components and devices and methods for utilizing ultrasound to treat or prevent vasopasm |
WO1993006780A1 (en) * | 1991-10-03 | 1993-04-15 | The General Hospital Corporation | Apparatus and method for vasodilation |
US5269297A (en) * | 1992-02-27 | 1993-12-14 | Angiosonics Inc. | Ultrasonic transmission apparatus |
US5380273A (en) * | 1992-05-19 | 1995-01-10 | Dubrul; Will R. | Vibrating catheter |
US5382228A (en) * | 1992-07-09 | 1995-01-17 | Baxter International Inc. | Method and device for connecting ultrasound transmission member (S) to an ultrasound generating device |
US5411482A (en) * | 1992-11-02 | 1995-05-02 | Infusion Technologies Corporation | Valve system and method for control of an infusion pump |
ATE178218T1 (en) * | 1993-02-05 | 1999-04-15 | Joe W And Dorothy Dorsett Brow | ULTRASONIC BALLOON CATHETER FOR ANGIOPLASTY |
US5409495A (en) * | 1993-08-24 | 1995-04-25 | Advanced Cardiovascular Systems, Inc. | Apparatus for uniformly implanting a stent |
US5417672A (en) * | 1993-10-04 | 1995-05-23 | Baxter International Inc. | Connector for coupling an ultrasound transducer to an ultrasound catheter |
US5427118A (en) * | 1993-10-04 | 1995-06-27 | Baxter International Inc. | Ultrasonic guidewire |
US5460609A (en) * | 1993-11-22 | 1995-10-24 | Advanced Cardiovascular Systems, Inc. | Electromechanical inflation/deflation system |
US5451220A (en) * | 1994-08-15 | 1995-09-19 | Microsonic Engineering Devices Company, Inc. | Battery operated multifunction ultrasonic wire for angioplasty |
-
1997
- 1997-04-08 US US08/826,889 patent/US5722979A/en not_active Expired - Lifetime
-
1998
- 1998-01-16 DE DE69824988T patent/DE69824988T2/en not_active Expired - Fee Related
- 1998-01-16 EP EP98200102A patent/EP0870484B1/en not_active Expired - Lifetime
- 1998-01-23 CA CA002227838A patent/CA2227838C/en not_active Expired - Fee Related
- 1998-04-07 JP JP9501798A patent/JPH10286311A/en not_active Withdrawn
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4655771B1 (en) | 1982-04-30 | 1996-09-10 | Medinvent Ams Sa | Prosthesis comprising an expansible or contractile tubular body |
US4655771A (en) | 1982-04-30 | 1987-04-07 | Shepherd Patents S.A. | Prosthesis comprising an expansible or contractile tubular body |
US4762129A (en) | 1984-11-23 | 1988-08-09 | Tassilo Bonzel | Dilatation catheter |
US4762129B1 (en) | 1984-11-23 | 1991-07-02 | Tassilo Bonzel | |
US5232445A (en) | 1984-11-23 | 1993-08-03 | Tassilo Bonzel | Dilatation catheter |
US4733665A (en) | 1985-11-07 | 1988-03-29 | Expandable Grafts Partnership | Expandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft |
US4733665C2 (en) | 1985-11-07 | 2002-01-29 | Expandable Grafts Partnership | Expandable intraluminal graft and method and apparatus for implanting an expandable intraluminal graft |
US4733665B1 (en) | 1985-11-07 | 1994-01-11 | Expandable Grafts Partnership | Expandable intraluminal graft,and method and apparatus for implanting an expandable intraluminal graft |
US5002531A (en) | 1986-06-26 | 1991-03-26 | Tassilo Bonzel | Dilation catheter with an inflatable balloon |
US5527336A (en) * | 1986-12-09 | 1996-06-18 | Boston Scientific Corporation | Flow obstruction treatment method |
US5163421A (en) | 1988-01-22 | 1992-11-17 | Angiosonics, Inc. | In vivo ultrasonic system with angioplasty and ultrasonic contrast imaging |
US5524620A (en) * | 1991-11-12 | 1996-06-11 | November Technologies Ltd. | Ablation of blood thrombi by means of acoustic energy |
EP0710490A2 (en) * | 1994-11-04 | 1996-05-08 | SciMed Life Systems, Inc. | Balloon catheter with improved pressure source |
EP0744163A1 (en) * | 1995-05-26 | 1996-11-27 | Schneider (Europe) Ag | Stent expansion system using a pulsated fluid medium |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3434311A1 (en) * | 2012-12-28 | 2019-01-30 | Bard Peripheral Vascular, Inc. | Drug delivery via mechanical vibration balloon |
CN106361465A (en) * | 2015-07-17 | 2017-02-01 | 上海微创医疗器械(集团)有限公司 | Manufacture method for degradable tube and degradable stent |
WO2019200201A1 (en) * | 2018-04-12 | 2019-10-17 | The Regents Of The University Of Michigan | System for effecting and controlling oscillatory pressure within balloon catheters for fatigue fracture of calculi |
US11464949B2 (en) | 2018-04-12 | 2022-10-11 | The Regents Of The University Of Michigan | System for effecting and controlling oscillatory pressure within balloon catheters for fatigue fracture of calculi |
Also Published As
Publication number | Publication date |
---|---|
JPH10286311A (en) | 1998-10-27 |
CA2227838C (en) | 2002-04-02 |
DE69824988T2 (en) | 2005-08-11 |
US5722979A (en) | 1998-03-03 |
CA2227838A1 (en) | 1998-10-08 |
DE69824988D1 (en) | 2004-08-19 |
EP0870484B1 (en) | 2004-07-14 |
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